Scientific Papers

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Global patterns in the bycatch of sharks and rays

Global patterns in the bycatch of sharks and rays

Published online on 17. January 2015 Global patterns in the bycatch of sharks and rays Shelby Oliver, Matias Braccini, Stephen J. Newman, Euan S. Harvey ABSTRACT: This study comprised a meta-analysis of elasmobranch bycatch in commercial longline, trawl, purse-seine and gillnet fisheries in order to obtain a general perspective of bycatch patterns, and to expose

Mechanical challenges to freshwater residency in sharks and rays

Mechanical challenges to freshwater residency in sharks and rays

Published online on 08. January 2015 Mechanical challenges to freshwater residency in sharks and rays Adrian C. Gleiss, Jean Potvin, James J. Keleher, Jeff M. Whitty, David L. Morgan, Jeremy A. Goldbogen ABSTRACT: Major transitions between marine and freshwater habitats are relatively infrequent, primarily as a result of major physiological and ecological challenges. Few species

Structural insights and biomedical potential of IgNAR scaffolds from sharks

Structural insights and biomedical potential of IgNAR scaffolds from sharks

Published online on 14. January 2015 Structural insights and biomedical potential of IgNAR scaffolds from sharks Stefan Zielonka, Martin Empting, Julius Grzeschik, Doreen Könning, Caroline J Barelle, Harald Kolmar ABSTRACT: In addition to antibodies with the classical composition of heavy and light chains, the adaptive immune repertoire of sharks also includes a heavy-chain only isotype,

Sizing ocean giants: patterns of intraspecific size variation in marine megafauna

Sizing ocean giants: patterns of intraspecific size variation in marine megafauna

Published on 13. January 2015 Sizing ocean giants: patterns of intraspecific size variation in marine megafauna Craig R. McClain​, Meghan A. Balk, Mark C. Benfield, Trevor A. Branch, Catherine Chen, James Cosgrove, Alistair D.M. Dove, Lindsay C. Gaskins, Rebecca R. Helm, Frederick G. Hochberg, Frank B. Lee, Andrea Marshall, Steven E. McMurray, Caroline Schanche, Shane

Diversity in immature-shark communities along a tropical coastline

Diversity in immature-shark communities along a tropical coastline

Published online on 08. January 2015 Diversity in immature-shark communities along a tropical coastline Peter M. Yates, Michelle R. Heupel, Andrew J. Tobin, Stephen K. Moore, Colin A. Simpfendorfer ABSTRACT: Effective conservation and management of shark populations is complicated by our limited understanding of their spatial ecology. For example, there are scarce data on diversity

Insight into the global practices of tourism operators and their attitudes to Shark behaviour

Insight into the global practices of tourism operators and their attitudes to Shark behaviour

Published online on 07. January 2015 Sharks and people: Insight into the global practices of tourism operators and their attitudes to Shark behaviour Kirsty Richards, Bethan C. O’Leary, Callum M. Roberts, Rupert Ormond, Mauvis Gore, Julie P. Hawkins ABSTRACT: Shark tourism is a popular but controversial activity. We obtained insights into this industry via a

Sharks caught by the Brazilian tuna longline fleet

Sharks caught by the Brazilian tuna longline fleet

Published on 07. January 2015 Sharks caught by the Brazilian tuna longline fleet: an overview Flávia Lucena Frédou, Mariana Travassos Tolotti, Thierry Frédou, Felipe Carvalho, Humberto Hazin, George Burgess, Rui Coelho, John D. Waters, Paulo Travassos, Fábio Hissa Vieira Hazin ABSTRACT: Large pelagic sharks are distributed throughout all of the oceans and are caught as

Population characteristics, habitat and diet of a recently discovered stingray Dasyatis marianae

Population characteristics, habitat and diet of a recently discovered stingray Dasyatis marianae

Published online on 06. January 2015 Population characteristics, habitat and diet of a recently discovered stingray Dasyatis marianae: implications for conservation T. L. A. Costa, J. A. Thayer, L. F. Mendes ABSTRACT: This study examined population density, habitat and diet of Dasyatis marianae, a recently discovered species, in the reef complex of Maracajaú in Rio

Species composition and aspects of the biology of Orectolobiformes from Indonesian waters

Species composition and aspects of the biology of Orectolobiformes from Indonesian waters

Published online on 26. December 2014 Species composition and aspects of the biology of Orectolobiformes from Indonesian waters Dharmadi, Fahmi, W. T. White ABSTRACT: The biological aspects of members of the order Orectolobiformes exploited in Indonesian waters are given. Seven species belonging to five families were recorded in the catches at various landing sites in

Long-term sperm storage in the brownbanded bamboo shark

Long-term sperm storage in the brownbanded bamboo shark

Published online on 28. December 2014 Long-term sperm storage in the brownbanded bamboo shark Chiloscyllium punctatum M. A. Bernal, N. L. Sinai, C. Rocha, M. R. Gaither, F. Dunker, L. A. Rocha ABSTRACT: This study investigated the birth of a brownbanded bamboo shark Chiloscyllium punctatum at the Steinhart Aquarium. Genetic analyses suggest this is the

Metazoan parasite communities and diet of the velvet belly lantern shark

Metazoan parasite communities and diet of the velvet belly lantern shark

Published online on 26. December 2014 Metazoan parasite communities and diet of the velvet belly lantern shark Etmopterus spinax (Squaliformes: Etmopteridae): a comparison of two deep-sea ecosystems W. Isbert, C. Rodríguez-Cabello, I. Frutos, I. Preciado. F. E. Montero, A. Pérez-del-Olmo ABSTRACT: By combining an examination of stomach contents yielding a snapshot of the most recent

Whale Shark Seasonal Presence, Residence Time and Habitat Use at Darwin Island, Galapagos Marine Reserve

Whale Shark Seasonal Presence, Residence Time and Habitat Use at Darwin Island, Galapagos Marine Reserve

Published on 31. December 2014 Whale Shark (Rhincodon typus) Seasonal Presence, Residence Time and Habitat Use at Darwin Island, Galapagos Marine Reserve David Acuña-Marrero, Jesús Jiménez, Franz Smith, Paul F. Doherty Jr., Alex Hearn, Jonathan R. Green, Jules Paredes-Jarrín, Pelayo Salinas-de-León ABSTRACT: The life history of the whale shark (Rhincodon typus), including its reproductive ecology,

Morphology of the ampullae of Lorenzini in juvenile freshwater bull sharks

Morphology of the ampullae of Lorenzini in juvenile freshwater bull sharks

Published online on 17. December 2014 Morphology of the ampullae of Lorenzini in juvenile freshwater Carcharhinus leucas Darryl L. Whitehead, Arnault R.G. Gauthier, Erica W.H. Mu, Mike B. Bennett, Ian R. Tibbetts ABSTRACT: Ampullae of Lorenzini were examined from juvenile Carcharhinus leucas (831–1,045 mm total length) captured from freshwater regions of the Brisbane River. The

Distribution and feeding habitat characterization of whale sharks in a protected area in the north Caribbean Sea

Distribution and feeding habitat characterization of whale sharks in a protected area in the north Caribbean Sea

Published online on 19. December 2014 Distribution and feeding habitat characterization of whale sharks Rhincodon typus in a protected area in the north Caribbean Sea N. Cárdenas-Palomo, J. Herrera-Silveira, I. Velázquez-Abunader, O. Reyes, U. Ordoñez ABSTRACT: The relationship between the distribution of the whale shark Rhincodon typus and hydrobiological variables in the Caribbean Sea during

Maternal offloading of organochlorine contaminants in the yolk-sac placental scalloped hammerhead shark

Maternal offloading of organochlorine contaminants in the yolk-sac placental scalloped hammerhead shark

Published on 20. December 2014 Maternal offloading of organochlorine contaminants in the yolk-sac placental scalloped hammerhead shark (Sphyrna lewini) Kady Lyons, Douglas H. Adams ABSTRACT: Elasmobranchs are a group of animals that typically occupy upper trophic levels in food webs and have a propensity to accumulate high contaminant concentrations. To date, few studies have investigated

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